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128984-81-6

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128984-81-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128984-81-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,9,8 and 4 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 128984-81:
(8*1)+(7*2)+(6*8)+(5*9)+(4*8)+(3*4)+(2*8)+(1*1)=176
176 % 10 = 6
So 128984-81-6 is a valid CAS Registry Number.

128984-81-6Relevant articles and documents

Synthesis of nojirimycin derivatives

-

, (2008/06/13)

Nojirimycin δ-lactam and deoxynojirimycin are each synthesized from 5,6-anhydro-3-O-benzyl-1,2-O-isopropylidene-L-idofuranose as a divergent intermediate by a method which comprises formation of the piperidine ring by connection of nitrogen between C-1 and C-5 with inversion of configuration at C-5 to form nojirimycin δ-lactam or between C-2 and C-6 with inversion of configuration at C-2.

SYNTHESIS OF DEOXYNOJIRIMYCIN AND OF NOJIRIMYCIN δ-LACTAM

Fleet, George W.J.,Carpenter, Neil M.,Petursson, Sigthor,Ramsden, Nigel G.

, p. 409 - 412 (2007/10/02)

The syntheses of nojirimycin δ-lactam and of deoxynojirimycin from a divergent ido-furanose intermediate are reported.

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